Power Systems A loss less transmission line has a length of 600 km, find the phase shift of voltage signal? 42° 45° 90° 36° 42° 45° 90° 36° ANSWER DOWNLOAD EXAMIANS APP
Power Systems On a power system network the load is increasing represents the value of impedance none of above. decrease. remains constant. increase. none of above. decrease. remains constant. increase. ANSWER DOWNLOAD EXAMIANS APP
Power Systems On what factors does the selection of a water turbine depend All of above. Speed. Working head. Nature of load. All of above. Speed. Working head. Nature of load. ANSWER DOWNLOAD EXAMIANS APP
Power Systems More efficient plants are used as None of these both 1 and 2 peak load plant base load plant None of these both 1 and 2 peak load plant base load plant ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 0.2 pu 1.375 pu 3.975 pu 2.4 pu 0.2 pu 1.375 pu 3.975 pu 2.4 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is 500 MVA 400 MVA 125 MVA 100 MVA 500 MVA 400 MVA 125 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS